US1189960A - Insulating-bushing. - Google Patents

Description

J. BJOHNSON.

INSULATING BUSHING. APPLICATION FILED APR.'30, 191.4.

4; attorney Patented July 4, 1916.

: .UNITED STATES PATENT OFFICE.

JOHN B. JOHNSON, 0F LAUREL, SOUTH DAKOTA.

INSULATING-BUSHING.

Application filed April 30, 1914. Serial No. 835,517.

To all whom it may concern:

Be it known that I, JOHN B. JOHNSON, a citizen of the United States, residing at Laurel, in the county of Sully and State of South Dakota, have invented certain new and useful Improvements in Insulating- Bushings, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to an insulating bushing and has special reference to a device which is adapted to form a tube through which an electric cable may be passed when it is desired to allow a cable to pass into a house or other structure.

Another object of this invention is the production of an insulating bushing which is formed to facilitate the passing of an electric cable into a house, this bushing being provided with a protecting hood upon its outer end for preventing the weather from beating through the tube or pipe, this p pe being inclined to allow any moisture whlch may be contained therein'to run so as to be expelled from the outer end thereof.

With these and other objects in view this invention consists of certain novel combinations, constructions and arrangements of parts as will be hereinafter fully described and claimed.

In the accompanying drawing: Figure 1 is a longitudinal section taken through the insulating bushing showing the same in use. Fig. 2 is a detailed perspective View of the insulating bushing. Fig. 3 is a section taken on the line 3-3 of Fig. 1 looking in direction of the arrows.

Referring to the accompanying drawing by numerals 1 designates the wall of a house in which there is formed an inclined passage 2. The tube or pipe of the insulating bushingis adapted to be positioned within- 3 having a central bore a formed therein.

A hood is integrally formed upon the outer end of this tube 3 and comprises a back 5 having integral sides 6. The upper portion is' covered by the curved top 7 which '1s curved downwardly toward its outer port on for shedding water and allowing the same to dry easily. The ears 8 having central apertures-9 are formed integrally upon the rear portions of the sides 6 for the purpose Specification of Letters Patent.

Patented July 4, 1916.

of allowing the securing means to be passed therethrough for holding the hood in engagement with the wall thereby retaining the insulating bushing upon the wall.

By carefully referring to Fig. 1 it will be seen that the tube '3 extends at an acute angle to the upper portion of the back 5 0f the hood and at an oblique angle to the lower portion of the hood thereby causing the pipe or tube 3 to slant upwardly. The outer end of the pipe or tube 3 extends-for a spaced distance beyond the outer face of the back 5 and the back 5 is provided with a thickened body 6 which extends upwardly to terminate evenly with the outer end of the tube or pipe 3.

When this device is in use the pipe or tube 3 is positioned within the passage 2 formed in the wall 1 so as to extend entirely therethrough. The back 5 will then abut against the outer surface of the wall 7 and will be secured thereto by a suitable means to be passed through the ears 8. The electric cable 10 is then extended upwardly into the interior of the hood, the end of the cable will of course strike upon the back 5 and may be moved until it strikes upon the thickened curved 'portion 5 of the back. This thickened curved portion 5 will constitute a guide for allowing the end of the cable to slide thereon and as soon as the cable slides thereon it will drop or be guided into the outer end of thetube 3. Then by forcing the cable along it will pass through this tube 3 and into the interior of the with-out causing any short circuit while the weather will be kept from beating into the insulating bushing, owing to the fact that the hood will provide the outer end of the tube 3 with a protector means, while the inclined construction of the tube 3 will cause any moisture which may happen to be contained therein to run outwardly to the outer end of the tube where it will be discharged.

This insulating bushing is preferably made of porcelain for withstanding rough usage, but it will, of course, be obvious that the same may be formed of glass, rubber, or any suitable insulating material which is desirable to be used.

From the foregoing description it will be seen that a simple and eflicient insulating bushing has been produced which will facilita'te thepassing of electric cables into a the outer end of said tube, said thickened building. and which is so formed as to be curved portion terminating evenly with the eheaply constructed and operate efficiently. outer end of said tube.

. Iclaimz f In testimony whereof I hereunto aflix my 6 51in dinsulatifig bushing compiiilsing a tube, signature in presence of two Witnesses.

. a; 00 orme integra upon t e outer end ofsaid tube and open at the bottom, said H JOHNSON hood provided with a rear wall extending Witnesses:

Vertically upward from said open bottom FRANK ELLIOTT,

10 having a thickened curved portion adjacent E. D. Sm'rnw.

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